Manufacturer Part Number: 551714. Compatible With 24 Valve 6BT Cummins Diesel Engines. For Dodge Ram 6BT 5.9L. Includes Plenum Plate Only. For Cummins Diesel Engines 24 Valve 5.9L. 1/2" Hose Barb Vacuum Port Fitting LS Truck Intake Manifold Rear Brake Boost LQ4.